Can-heading machine.



J. BRENZINGER:

CAN HEADING MACHINE.

APPLICATION FILED FEB. 24 1910.

' 1,121,894, Patented D60. 22. 1914.

2 SHEETS SHEET 1.

J. BRENZINGER.

CAN HEADING MACHINE.

APPLICATION FILED FEB.24,1910 1 y 1 21 94, Patented Dec. 22, 1914.

2 z I lm entor: j

UNITED STATESirilPENT OFFICE.

.JULIUS BRI INZINGEB, MOUNTVERNON, NEW YORK, ASSIGNOB, TO MACHINECOMPANY, OF MOUNT VERNON, NEVJ YORK, A CORPORATION OF NEW YORK.

oan-niz-Annig MACHINE.

Sbecificatioin iietters Patent. Patented Dec. 22,1914 1 Applicationfiled February 24, 1910. Serial m. 545,571

1 '0 all whom it may concern:

Be it known that I, JULIUS BRENZINGER, a citizen of the United.States,'residitigaat Mount Vernon, in the county of WVestehester andState of New York, have invented certain new and useful Improvements inCan-Heading Machines, of which-:the-fob lowing is a specification; I l iThis invention relates to machines for securing the tops and bottoms toth ide or body portions of sheet metalcontainers, commonly known as tincans,wbat is known as the double-seaming process.

The more connnon forms of doilble -seaming machines now in .useareieae-h. provided with a rotatable support diorsthe can-body, and witha rotating ehuclclwhich its in a de pression in thetopor. bottom and notonly ser es to rotate the can body with said top or bottom held firmlyin placeforrthe seam ing operation, but supports the edgeof the toplaterally against the forces 10f the s'ea1n ing operation. Thisoperation is most generally performed by two seaming rollers,

which are successively brought against the edge of the top' or bottom,the first roller serving to fold or curl the edge of the top or bottomaround the flange which has been provided at the end edgeof the bodyportion, and the second roller serving to compress the interfoldedlayers-into a substantially solid bead.

it will be apparent that in adjusting a can body, with the top or bottomloosely placed thereon, in'the machine, the seaming rollers must be outof the way, and after the can parts hare been firmly engaged and arerotating, these rollers must be automatically brought successively intocontact withthe edge of the can top or bottom.- This necessitates theemployment of cams or other means for actuating and properly timingoperations ofthe scanning rollers. Furthermore in addition to the timenecessarily lost in bringing the seaming rollers alternately intopositions to perform the seaming operation, and thus necessarilylimiting the capacity ot the machine, the groove with these rollersprovided is necessarily of uniform size and shape throughout its lengththe intercurling or interfohling of the hang-cs being effected byforcing the roller toward-the can, thusne' cessita'ting a high degree ofaccuracy of adjustment.

The principal objeets'of the present invention are, first, to 'provlde-amaehine which, having seamingmechanism of suchcharaoa h ugh theelimination of ca mls mi 6'0 other means for bringing the seaming mechanism into and out of. operating pos' io'n, may be operated at muchgreaterlspe c njd therefore have a much greater:- capacity; second, toprovide seaming mechanism which is at all times positivelyheld iiiposition 'foif GifQClJlVG operation, whereby allpossible dan ger of theparts getting ou't'of adjustment is absent; third, for the aboye and'o'therwrea sons to provide a machine' in which the seaming operation issubstantially:continuous; and, fourth, to pros, do .a double seamingnachine which shall be compare tirely simple in construction and t oithe greatest possible extent iitom'atie, efiic iit, and dependable inoperatiiinra 1 My inventionlwillbe more r d i y stood by reference tothehjaceoinp anymg draw ings,- forming a part ;.of;this speeifiea' tion,in which- I Figure l is a side elevationgf ,a d quble' with )arts brokenaway; Fig. 2 i's an jerilarge detail elevation ofthe seamingiiiclianism; Fig. 3 is'a central vertical section" of the seaming rollerand its support, and.

I y 8.0 seaming machine embodyingmy invention Figs. 4 and 5 are: detailrie'ws showing the" successive steps of the seaming "operation, with twodifferent forms of seaming rollers.

Referring now to the drawings in detail, numeral 11 refers to a heavysupporting frame having a. base 12 which carries the standard l3 inwhich and said frame'lI'the shaft lat is journaled. 'Atthe'end of theshaft let. are mounted the usual fast and At the lower end ofthe shaft18 is mounted the head 33 which carries a. chuck 2i adapted to fit intoa corresponding depressioninthe topor bottom whiehis intended to bedouble-seamed to body portion 25 of the can."

Journaled in the arm 17, just baclrof the v throughout the remainderthereof. In this mesh with the shaft 18,- andin the bracket 26projecting forwardly from the frame 11, is the vertical shaft'27, uponwhich is fixed the gear 28 in gear 29 on the shaft 18, whereby the twoshafts Band 27 "rotate in unison, Upon this shaft 27 is fixed theinverted, pup shapedf- 'member 30, which is adapted to snugly containthe single seaming-roller 31. This seaming roller is preferably'gloose:upon the shaft 27, being supportedhy-Z thecollar 42 fixed uponsaid shaft, and'iziseadapted-to slide} thereon freely, in

and of thie containing vmember -30. This seannn roller r31vv ijrlprovided. with a contin- 32:1i .Whenfthis 1roller is 2 ."designed to'dotihle sea m 'the top j'or. bottom tdthfe. body'por-tion of the caninthe manner heretofore 'performe d by; two f successively operatingseaming rollers, this groove 32, while gdeepest atfthe 'beginningthereof, at

the' -lo wer-od'ge of therollenfil, and gradually becoming" shallower asit. approaches the ..formwidth throughout approximately one half, of itslength, and uniformly wider manner,;, .-this single roller 31 isprovided portion merging into another portion which corresponds in widthto that oflthe groove .Aferred to.

with a groove .which first. corresponds in width to the groove in thefirst ofthe two seaming rollers heretofore employed,' this in the secondof the two seaming rollers rehave shoivn diagrammatically the operationand effect of a spirally 'g'ro'oved seaming roller designed to performthe-same character of seaming operation as that-heretofore performedbytwo seaming rollers- In Fig.7 5 I have shown the seaming roller, 31"provided With'a groove the configuration of which varies to 'meet therequirements for which heretofore three seaming-rollers have beensuccessively employed.

' In this case, it will be noted that the groove,

through approximately one-third of its length, has the efi'ect ofbending the end of the upper flange around the lower flange,

this portion of the groove merging into an intermediate portion wherethe interfolded flanges are bent toward the body of the can, and thisintermediate portion merging into the upper and final portion of thegroove which serves to compress the interfoldedilanges into asubstantially solid bead.

The platform 35, upon which the can body 25 is placed for the seemingoperation, 13 mounted-at the upper end of the shaft 36, which'is:rotatable and slidable longitudinally in hearings in the bracket 37,projecting forwardly from. the frame 11..

This shaft 36 is vertically reciprocated by means of the hand lever 38operat ng through the connecting link 39 to raiseland.-. lower thecollar 40 sosecured to the gether.

as to permit rotation thereof. It will therefore be seen that theplatform 35 is normally stationary, so that the can body does not beginto rotate until the chuck enters the correspondingdepression in the cantop and firmly seats said top on the can body. .7 This is importantwhensealing cans filled with hot liquid or semi-liquid material, portions ofwhich are thrown off by centrifugal force if the can-body is rotatedbefore the top is firmly seated thereon. "When-the platform 35 israised, the can-body audits seated top willbe rotated with the shaft 18.-It will be apparent thatwhen the can body "with its superposed I top israised through depression of'the' lever'38, the rela; tion between thecontainer '30 and the seamingroller 31 being normally as indicated inEigh3, the first effect produced will be that of-engagementbetween theupper flange 33 of the can top and the bottom of the seam-. ing roller31, the latter being thereby carried up into the container 30 while thecan is raised to that point where; the chuck 24 I enters the depressionin the can top and firmly grips the two parts of" the can to- The canbody with its top firmly seated thereon is caused to.' rotate with thechuck 24, and through the medium-of the can parts the supportingplatform 35 is also .caused to rotate at the same speed as the chuckf Itwill be noted that si'nce'the seaming roller 31 is loose on shaft 2-7,positive rotation will not be imparted to said roller by the rotation ofsaid shaft, although the roller will have a tendency to rotate due tofrictional contact with shaft 27 and the cone tainer 30. When, however,the canparts have been firmly gripped by the chuck and are caused torotate therewith, the flanges 33 and 3 1- will enter and advance in: the

groove 32, and due to their frictional con tact with said groove theroller 31 will be; caused to rotate. As has been explained, this posedlayers are folded down against the can-body, as indicated by the dottedlines, o

the shallowest portion of the groove finally having the effect ofcompressing the inter folded layers into a substantially solid bead.

It will be apparent with respect. to this,

seaming roller and its, operation, that the roller rotates upon a fixedaxis and is alwaysin position foroperatiorr. From the instant thgs'uperposed'fiangcs enter 'the lower end of the groove and the can partsare gripped bytheochuclr, the seaming operation is conseaming operation,said member being 7 mounted for bodily movement vertically and beingprovided with a spiral groove of varying cross-sectional configuration,of means for advancing the assembled can parts to and pressing the sameagainst said supporting means and thereby raising said member anddirecting the flanges into said oove, and said member being lowered uneraction of gravity to retain said flanges in said groove throughout theentire seam ing operation.

In testimonyv of the foregoing I have hereunto set my hand in thepresence of two Witnesses: I 1

P. FRANK SONNEK, AARON GfNSBURG.

